LM5140QRWGRQ1

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LM5140QRWGRQ1

DUAL SYNCHRONOUS BUCK CONTROLLER

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規格

Part Status Active
Output Type Transistor Driver
Function Step-Down
Output Configuration Positive
Topology Buck
Number of Outputs 2
Output Phases 1
Voltage - Supply (Vcc/Vdd) 3.8V ~ 65V
Frequency - Switching 440kHz, 2.2MHz
Synchronous Rectifier Yes
Clock Sync Yes
Control Features Current Limit, Enable, Frequency Control, Soft Start
Operating Temperature -40°C ~ 150°C (TJ)
Mounting Type Surface Mount, Wettable Flank
Package / Case 40-VFQFN Exposed Pad
Supplier Device Package 40-VQFNP (6x6)
Base Product Number LM5140
Grade Automotive
Qualification AEC-Q100

概述

Description

The LM5140QRWGRQ1 is a high-performance, synchronous buck controller designed for automotive applications. It is manufactured by Texas Instruments and is part of their integrated power management solutions. This device supports a wide input voltage range and is optimized for efficiency, making it ideal for powering a variety of automotive systems, including infotainment, power steering, and ADAS (Advanced Driver Assistance Systems).
Key features of the LM5140 include a dual-phase architecture that enables high output current capability while maintaining compact design. It offers adjustable switching frequency, extensive protection features (such as overcurrent, thermal shutdown, and under-voltage lockout), and a flexible control scheme. The device is designed to meet stringent automotive standards, making it suitable for critical applications that require reliability and performance under harsh conditions.
Overall, the LM5140QRWGRQ1 is a versatile solution for designers looking to implement efficient and reliable power conversion in automotive systems.

Features

The LM5140QRWGRQ1 is a high-performance synchronous buck controller designed for automotive applications. Key features include:
1. Wide Input Voltage Range: Operates from 4.5V to 60V, accommodating various automotive power systems.
2. High Efficiency: Supports PWM operation for efficient power conversion, minimizing heat generation.
3. Adaptive On-Time Control: Ensures stable operation across a wide range of output voltages and load conditions.
4. Integrated Gate Drivers: Features high-side and low-side MOSFET drivers for optimal switching performance.
5. Fault Protection: Includes features like over-voltage protection, under-voltage lockout, and thermal shutdown to enhance reliability.
6. Adjustable Switching Frequency: Allows flexibility in design to meet specific application requirements.
7. Phase Spread: Supports multi-phase operation to improve efficiency and reduce output ripple.
8. Automotive Grade: AEC-Q100 qualified, ensuring robustness for automotive environments.
These features make the LM5140QRWGRQ1 suitable for powering various automotive systems, including infotainment, ADAS, and electric vehicle applications.

Package

The LM5140QRWGRQ1 is packaged in a 40-pin HTQFP (Thin Quad Flat Pack) with a lead pitch of 0.5 mm. This package type is designed for surface mounting and allows for efficient thermal management and space-saving in circuit board designs.

Pinout

The LM5140QRWGRQ1 is a high-performance, dual synchronous buck controller with a pin count of 28. It is designed for power management applications, particularly in automotive environments.
Key functions include:
1. Dual Buck Control: It supports dual-channel output for efficient power conversion.
2. Voltage Regulation: Provides precise output voltage regulation suitable for various loads.
3. Sync and Phase Control: Allows for phase interleaving to improve efficiency and reduce ripple.
4. Compensation Network: Integrated compensation simplifies design and enhances stability.
5. Programmable Design Features: Features like programmable switching frequency and adjustable soft-start for flexibility in design.
6. Protection Features: Includes over-voltage protection, under-voltage lockout, and thermal shutdown for reliable operation.
These features make the LM5140QRWGRQ1 suitable for automotive applications requiring efficient and reliable power management.

Manufacturer

The LM5140QRWGRQ1 is manufactured by Texas Instruments (TI), a renowned company in the semiconductor industry. Texas Instruments is a global leader in the design and manufacture of analog and embedded processing chips. Founded in 1930, the company has a diverse range of products, including microcontrollers, processors, and power management solutions, serving various markets such as automotive, industrial, communications, and consumer electronics. The LM5140QRWGRQ1 is a synchronous buck controller designed for high-efficiency power management applications, particularly in automotive settings. TI is recognized for its commitment to innovation and quality in the semiconductor space.

Application

The LM5140QRWGRQ1 is a dual-channel, synchronous buck controller primarily used in automotive applications. Its main application areas include power management for electric vehicles (EVs), advanced driver-assistance systems (ADAS), infotainment systems, and power supply for microcontrollers and FPGAs. It supports high-efficiency voltage regulation and robust performance in demanding environments, making it suitable for various automotive electronic systems.

Equivalent

The LM5140QRWGRQ1 is a high-performance synchronous buck controller. Equivalent products include:
1. LM5140-Q1 (automotive grade)
2. LT8640 (from Analog Devices)
3. TPS561201 (from Texas Instruments)
4. ISL8273 (from Renesas)
5. LTC3780 (from Analog Devices)
Always verify specifications and compatibility for your specific application.

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